Foundation engineering apparatus and foundation engineering method

Abstract

The invention relates to a civil engineering device and a civil engineering method for using a civil engineering device. The device has a support device, a ground preparation tool, which prepares the ground at a preparation location, and at least one GPS unit, which is arranged on the support device and is designed to determine the position of the preparation location, wherein the GPS unit is arranged at a distance from the ground preparation location. The civil engineering device is characterised in that a measuring device is provided in addition to the GPS unit, the measuring device being designed to determine the distance between the GPS unit and the preparation tool.

The invention claimed is: 
     
       1. A foundation engineering apparatus for producing a foundation element in a ground, comprising:
 a carrier device, 
 a ground working tool which works the ground at a ground working location to produce borehole or a cut trench as a ground recess which can be filled with a suitable material during a sinking or after completion of producing the foundation element, and 
 at least one GPS-unit which is arranged on the carrier device and designed to determine a position of the working location, 
 wherein the at least one GPS-unit is arranged at a distance to the ground working location, 
 wherein a measuring means is provided on the carrier device in addition to the at least one GPS-unit, and the measuring device is arranged at another distance to the ground working location, wherein 
 the measuring means is designed to determine a distance between the at least one GPS-unit and the ground working tool with a distance measurement of the measuring means to the ground working tool, 
 the measuring means having a fan laser. 
 
     
     
       2. The foundation engineering apparatus according to  claim 1 , wherein
 the measuring means is spaced from the at least one GPS-unit. 
 
     
     
       3. The foundation engineering apparatus according to  claim 1 , wherein
 the at least one GPS-unit is provided on an upper carriage of the foundation engineering apparatus. 
 
     
     
       4. The foundation engineering apparatus according to  claim 1 , wherein
 the measuring means is designed as a contact-free operating measuring means. 
 
     
     
       5. The foundation engineering apparatus according to  claim 1 , wherein
 the foundation engineering apparatus is designed as a drilling apparatus. 
 
     
     
       6. The foundation engineering apparatus according to  claim 1 , wherein
 the foundation engineering apparatus is designed as a diaphragm wall cutter. 
 
     
     
       7. The foundation engineering apparatus according to  claim 1 , wherein
 the foundation engineering apparatus is designed as a vibrator or a pile driver. 
 
     
     
       8. A foundation engineering method using the foundation engineering apparatus according to  claim 1 , wherein
 the ground at the ground working location is worked with the ground working tool which is arranged on the carrier device, and 
 a position of the ground working location is determined by means of the at least one GPS-unit which is spaced from the ground working location, 
 wherein 
 the distance between the ground working tool and the at least one GPS-unit is determined with the measuring means by means of the distance measurement of the measuring means to the ground working tool. 
 
     
     
       9. The foundation engineering method according to  claim 8 , wherein
 the distance is determined contact-free by means of the measuring means. 
 
     
     
       10. The foundation engineering method according to  claim 8 , wherein
 the distance is determined using at least the fan laser as the measuring means by scanning the ground working tool. 
 
     
     
       11. The foundation engineering method according to  claim 8 , wherein
 a bored pile or a diaphragm wall segment, is produced.